DNA vaccines: are they still just a powerful tool for the future?
Identifieur interne : 002082 ( Main/Exploration ); précédent : 002081; suivant : 002083DNA vaccines: are they still just a powerful tool for the future?
Auteurs : Jana B Láková [République tchèque] ; Milada Horynová [République tchèque] ; Michal K Upka [République tchèque] ; Evžen Weigl [République tchèque] ; Milan Raška [République tchèque]Source :
- Archivum Immunologiae et Therapiae Experimentalis [ 0004-069X ] ; 2007-12-01.
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Abstract
Abstract: Vaccination is historically one of the most successful strategies for the prevention of infectious diseases. For safety reasons, modern vaccinology tends toward the usage of inactivated or attenuated microorganisms and uses predominantly subunit vaccines. The antigens need to be clearly defined, pure, stable, appropriately composed, and properly presented to the immune system of the host. Differing ratios of various proportions between specific CD4+ and CD8+ T cell responses are essential for conferring the required protection in the case of individual vaccines. To stimulate both CD4+ and CD8+ T cells, the antigens must be processed and presented to both antigen-presentation pathways, MHC I and MHC II. Protein antigens delivered by vaccination are processed as extracellular antigens. However, extracellularly delivered antigen can be directed towards intracellular presentation pathways in conjugation with molecules involved in antigen cross-presentation, e.g. heat shock proteins, or by genomic-DNA vaccination. In this overview, current knowledge of the host immune response to DNA vaccines is summarized in the introduction. The subsequent sections discuss techniques for enhancing DNA vaccine efficacy, such as DNA delivery to specific tissues, delivery of DNA to the cell cytoplasm or nucleus, and enhancement of the immune response using molecular adjuvants. Finally, the prospects of DNA vaccination and ongoing clinical trials with various DNA vaccines are discussed.
Url:
DOI: 10.1007/s00005-007-0044-4
Affiliations:
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Immunol. Ther. Exp.</title><idno type="ISSN">0004-069X</idno><idno type="eISSN">1661-4917</idno><imprint><publisher>Birkhäuser-Verlag</publisher><pubPlace>Basel</pubPlace><date type="published" when="2007-12-01">2007-12-01</date><biblScope unit="volume">55</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="387">387</biblScope><biblScope unit="page" to="398">398</biblScope></imprint><idno type="ISSN">0004-069X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0004-069X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>CTL</term><term>DNA vaccine</term><term>MHC I</term><term>MHC II</term><term>delivery systems</term><term>plasmid</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Vaccination is historically one of the most successful strategies for the prevention of infectious diseases. For safety reasons, modern vaccinology tends toward the usage of inactivated or attenuated microorganisms and uses predominantly subunit vaccines. The antigens need to be clearly defined, pure, stable, appropriately composed, and properly presented to the immune system of the host. Differing ratios of various proportions between specific CD4+ and CD8+ T cell responses are essential for conferring the required protection in the case of individual vaccines. To stimulate both CD4+ and CD8+ T cells, the antigens must be processed and presented to both antigen-presentation pathways, MHC I and MHC II. Protein antigens delivered by vaccination are processed as extracellular antigens. However, extracellularly delivered antigen can be directed towards intracellular presentation pathways in conjugation with molecules involved in antigen cross-presentation, e.g. heat shock proteins, or by genomic-DNA vaccination. In this overview, current knowledge of the host immune response to DNA vaccines is summarized in the introduction. The subsequent sections discuss techniques for enhancing DNA vaccine efficacy, such as DNA delivery to specific tissues, delivery of DNA to the cell cytoplasm or nucleus, and enhancement of the immune response using molecular adjuvants. Finally, the prospects of DNA vaccination and ongoing clinical trials with various DNA vaccines are discussed.</div></front></TEI><affiliations><list><country><li>République tchèque</li></country></list><tree><country name="République tchèque"><noRegion><name sortKey="B Lakova, Jana" sort="B Lakova, Jana" uniqKey="B Lakova J" first="Jana" last="B Láková">Jana B Láková</name></noRegion><name sortKey="B Lakova, Jana" sort="B Lakova, Jana" uniqKey="B Lakova J" first="Jana" last="B Láková">Jana B Láková</name><name sortKey="Horynova, Milada" sort="Horynova, Milada" uniqKey="Horynova M" first="Milada" last="Horynová">Milada Horynová</name><name sortKey="K Upka, Michal" sort="K Upka, Michal" uniqKey="K Upka M" first="Michal" last="K Upka">Michal K Upka</name><name sortKey="Raska, Milan" sort="Raska, Milan" uniqKey="Raska M" first="Milan" last="Raška">Milan Raška</name><name sortKey="Weigl, Evzen" sort="Weigl, Evzen" uniqKey="Weigl E" first="Evžen" last="Weigl">Evžen Weigl</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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